Very witty of Labour HQ to put Tristram Hunt, the shadow education secretary, up to attack the coalition for failing on social mobility, he says “Under the Tories, the attainment gap between disadvantaged children and the rest is blah blah blah…” That is Tristram Hunt, son of Julian Hunt, Baron Hunt of Chesterton, educated at the exclusive private University College School and Trinity College, Cambridge. How we laughed…